It contains the following sections:
The multirack cabling service allows you to extend the capability of the Exalogic rack systems to beyond just a single rack. The multirack cabling service allows you to cable up to eight Exalogic machine full racks together, without requiring any external InfiniBand switches.
It is assumed that all racks are adjacent to each other, in a side-by-side configuration. If racks are not side-by-side, then you may need to purchase longer cables for the extended connections. Placing the racks in any configuration other than side-by-side may require you to purchase additional 10–meter cables. Cable lengths across computer room aisles can vary from site to site, and may increase the difficulty of determining the cable lengths that you may need to purchase.
You can use the multirack cabling service to connect an Exalogic machine with one or more Exalogic machines, or with one or more Exadata Database Machines. This guide discusses in detail how to perform multirack cabling tasks in the following scenarios:
Connecting an Exalogic machine full rack to another Exalogic machine full rack, as described in Chapter 5, "Connecting Two Exalogic Machines"
Connecting an Exalogic machine full rack to an Exadata Database Machine full rack, as described in Chapter 6, "Connecting Exalogic and Exadata Machines"
Connecting an Exalogic machine quarter rack to an Exadata Database Machine quarter rack, as described in Chapter 6, "Connecting Exalogic and Exadata Machines"
Appendix A contains network connectivity diagrams for one Exalogic machine connected to another Exalogic machine, and for the scenario where eight Exalogic full racks are connected.
Appendix B contains network connectivity diagrams for one Exalogic machine connected to one Exadata machine.
Any combination of up to eight racks of Exalogic machines or Exadata Database Machines can be connected together. If you need to connect a combination of more than eight Exalogic machine full racks or Exadata Database Machine full racks, you will require additional switches, such as an M9-648 port modular switch. A detailed discussion of such scenarios is beyond the scope of this guide. For more information, please contact Oracle Support.
For detailed information about the hardware components of the Exalogic machine and the rack layout, see the Oracle Exalogic Elastic Cloud Machine Owner's Guide.
All configurations of the Exalogic machine (full, half, quarter, and eighth rack) include Sun Network QDR InfiniBand Gateway Switches. Only the Exalogic machine full rack and half rack configurations include a Sun Datacenter InfiniBand Switch 36.
This section discusses the port usage in the following InfiniBand switches in multirack configuration scenarios:
Figure 1-1 illustrates the port usage in each of the Sun Network QDR InfiniBand Gateway Switches (NM2-GW).
illustrates the port usage in the Sun Datacenter InfiniBand Switch 36 (NM2-36P), which is included in Exalogic machine full rack and half rack configurations.
Before cabling an Exalogic machine rack for multiple rack operation, you must know the system configuration and obtain all the prerequisite information for system installation. It is assumed that all Exalogic machine racks have been properly installed and verified. If you are connecting an Exalogic machine to an Exadata Database Machine, ensure that both Exalogic machine and Exadata Database Machine are installed and verified.
Procedures in this guide assume that the racks are next to each other.
Before you begin installing an Exalogic machine, perform pre–installation planning. Complete the checklists in the Oracle Exalogic Elastic Cloud Machine Owner's Guide. Verify the site space, access route, power, grounding, air flow, and network requirements that are provided in the Oracle Exalogic Elastic Cloud Machine Owner's Guide.
Install Exalogic machine racks if the cabling service is performed as part of an initial installation. To install an Exalogic machine, follow the instructions in the Oracle Exalogic Elastic Cloud Machine Owner's Guide. Ensure that you read the entire guide before beginning installation, and follow all safety precautions.
Perform the following multirack cabling tasks, in order, after completing the installation process.
Review safety considerations.
Perform preliminary tasks.
Perform cabling tasks.